Abstract

The synthesis, characterisation and magnetic properties of two series of polynuclear cyanide-bridged high spin molecules are presented. Tetranuclear compounds of general formula (NC)3M(CNM′L5)3 7H2O (M = FeIII, CrIII and M′ = MnIII, FeIII) are obtained by using peripheral complexes with pentadentate ligands. Pentanuclear complexes ((NC)3Cr[CNNi(ligand)2NC]3Cr(CN)3 6H2O) are designed owing to steric hindrance induced by bulky bidentate ligands chelating the peripheral NiII complexes. The magnetic properties show that ground states with spin up to 9 may be obtained.

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